a = 8
a += 2
print(a)
a -=2
print(a)
a *= 2
print(a)
a /= 2
print(a)
print(20+30)
print(2*6)
a = 2
b = 11
print(a == b)
print(a != b)
print(a > b)
print(a < b)
print(a >=b)
print(a <=b)

print(True and  False)
print(True and  True)
print(True or  False)
print(not False)

str1='hello'
print('h' in str1)
print('e' in str1)
print('l' not in str1)
print('o'not in str1)
